Vamp-trimming machine.



J. B. HADAWAY. VAMP TRIMMING MACHINE. APPLICATION rum) SEPT.16, 1905.

Patented 'Aug. 30, 191.0.

3 SHEETB8HEET 1.

J. B. HADAWAY. VAMP TRIMMIN G MACHINE. I APPLICATION FILED SEPT. 16, 1905. 7 968,554. Patented Aug. 30, 1910.

3 SHEETSSHEET 2.

J B HADAWAY VAMP TRIMMING MACHINE. APPLICATION FILED SEPT. 16, 1905.

Patented Aug. 30, 1910.

3 SHEETSSHEET 3.

,[Itfidfar W4 K 4 23 11.... f7)! WM, mall-m5 nnrrnn s'rarns Parana canton JOHN B. HADAWAY, 0F BROCKTON, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PA'IERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

VAMPTRIMMING MACHINE.

Specification of Letters Patent.

atented Aug. 3%), 19M).

'trinnning machines which are used in the manufacture of shoes, and more particularly in the manufacture of weltedshoes, to trim the projecting edges of the vamp and lining after the upper has been lasted and before the welt is sowed to the shoe, to prepare the shoe for'the operation thereon of the lIlSEil sewing machine.

lhe invention is intended primarily as an improvement on the vamp trimming machine disclosed in applicants prior application Serial No. 215,509, filed July 6,1904 but, .except as defined in the claims, is not limitedto the particular form of vamp trimming machine disclosed in said application, but may also be embodied in vamp trimming machines having trimming knives and other operating parts differently constructed and arranged or in vamp trimming machines of that class known in the art as inseam trimming machines which act on-the shoe after the inseam has been sewn.

The objects of the present invention are I to improve the construction and arrangement of the trimming knives of a vamp trin'nning machine, and particularly the construction and arrangement of the knife which extends inside of the vamp, to provide means for insuring the presentation of the edge of the vamp to the trimming knife or knives as the shoeis fed through the machine, and in general to improve the construction, arrangement and mode of operation of the various parts of vamp trimming machines.

With these objects in view a feature of the invention contemplates the provision in a -vamp' trimming machine provided With a knife for trmmlng the edge of the vamp, of a knife to cooperate therewith arranged to extend inside of the vamp of a lasted shoe,

and having its blade angularly disposed with relation to the blade of the trimming knife so that the trimming knife cuts across the plane of the cooperating knife. The arrangement of the knife which extends inside of the vamp, with its blade angnlarly disposed with relation to the blade of the trimming knife, permits the use of a strong and serviceable knife which can be readily ground without liability of changing the shape of its cutting edge and the grinding of which does not reduce the blade sufiiciently to necessitate replacement of the knife except at long intervals. The knife which extends inside of the vamp of the shoe is preferably fixed and the trimming knife is preferably arranged to vibrate as such knives can be arranged in a simple and compact manner and permit the shoe to be readily manipulated so as to present all portions of the edge of the vamp to the action of the knives, and, furthermore, act in a more satisfactory manner-than other forms of knives to 'trim the vamp.

Another feature of the present invention contemplates the provision in a vamp trimming machine provided with a vamp trimming knife of simple and efficient means hereinafter described and claimed for bonding the edge of the vamp inwardly toward the medial line of the shoe to insure its being brought into a position to be'acted upon by the trimming knife. i

In the machine disclosed in the application hcreinbeforc referred to means are provided for raising the vamp from the sole of the shoe and directing it between the cut ting edges of the trimming knife and the fixed knife, this means consisting of a guide extending beneath the fixed knife and provided at its inner end with a vamp raising projection.

In accordance with a feature of the present invention a guide is provided for-raising the vamp and directing it between the edges of the knives which extends in front of the fixed knife wherebythe vamp is raised from the sole with greater certainty and any liability of the vamp passing beneath the fixed knife is avoided. I

In addition to the features of invention above referred to, the present invention also consists in certain constructions and arrangements of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following description The various features of the present invention will be understood from an inspection of the accompanying drawings in which- Figure l is a view in side elevation of a vamp trimming machine embodying the same in their preferred form; Fig. 2 is a view in front elevation of the machine, Fig. 3 is a detail sectional view illustrating a guide for the vibrating knife and the manner in which his adjustably mounted on the machine frame; Fig. l is a detail view partly in section illustrating the fixed knife which extends beneath the vamp and its means of support and adjustment; Fig. 5 is a similar view illustrating the manner in which the vibrating trimming knife is ad justably secured to its carrier; Fig. 6 is a detail perspective view on an enlarged scale, illustrating the action of the machine in trimming the vamp of a lasted shoe; and

Fig. 7 is a view in rear elevation of the fixed knife which extends beneath the vamp, and the guide extending in front of the fixed knife.

1 indicates the vibrating trimming knife which is adjnstablv secured to a reciprocating slide 2 by means of a bolt 3 passing through a slot in the knife and screwing into a clamping block l. The slide 2 is mounted in aninclined guideway in a pro jection 5 from the frame of the machine, and reciprocating movements are imparted to the slide by means of an eccentric (5 upon the driving shaft 7 of the machine, and an eccentric strap b surrounding the eccentric and pivotally connected to the upper end of the slide. The shaft 7 is provided with belt pulleys 9 and 10 and with a balance wheel ll and is constantly rotated during the 0pcration of the machine.

The fixed knife, which extends inside of and beneath the vamp and which cooperates with the vibrating trimming knife 1, is in dicated at 12. The shank of this knife extends verticallv and the blade of the knife curved inwardl' as best shownin Figs. 1 and (3, the portion of the blade in proximity to the vibrating trimming knife being substantially at right angles to the blade of the trimming knife. The cutting edge of the knife l2 is formed at the inner end of the blade, and the trimming knife reciprocates across the blade. The fixed knife 12 is sharpened'bv grinding the surface at the inner end of the knife, and it will be evident that this grinding does not weaken the blade and that a large portion of the blade can be ground away before the knife is rendered unfit for use.

It is desirable that the cutting edges of the vibrating and fixed knives be arranged to produce a shearing cut, and to this end the cutting edge of the vibrating knife is arranged toextend obliquely across the end of the blade of the knife, and the blade of the fixed knife is so arranged that its cutting edge extends at anangle to the sole of a shoe presented to the knives. This arrangement of the blade of the fixed knife brings its forward end close to the sole of a shoe so that the vamp and lining are readily raised from the sole upon the blade of the knife, and removes the rear edge of the blade a sufiicient distance from the sole of the shoe to enable the vibrating knife to move a suflicient distance toward the shoe to trim the vamp without liability ofcutting into the insole.

To enable the fixed knife 12 to be adjusted both vertically and horizontally to bring its cutting edge into a position to cooperate with the cutting edge of the vibrat- .ing knife, it is secured to a block 13 by means of a screw ll passing through a vertical slot 15 in the shank of the knife and screwing into the block, and the block 13 is secured to a rigid bracket 16 on the frame of the machine by means of a screw 17 passingthrough a slot 18 in the bracket and screwing into the block. To facilitate the adjustment of the block 13 on the bracket 16 an adjusting screw 19 is journaled in a. projection on the block 13 and screws into the bracket 16.

knife 1 is moved until the rear portion of its cutting edge is nearly or quite separated from the cutting edge of the fixed knife in order to provide a suflicient space between the cutting edges of the knives to receive the vamp and linin To maintain thecutting edge of the vibrating knife in alinement with the cutting edge of the fixed knife when the vibrating knife is retracted, a stationary guide 20 is provided which bears directly against the blade of the vibrating knife. This guide is secured to ablock 21 by means of a screw 2:2, and the block 21 is aujustably secured to'a bracketj?) on the frame of the machine by means'of a screw Q-t passing through a slot in the bracket. The block 21 is adjusted on the bracket 23 by meansof an adjusting screw 25 journaled in the block 21 and screwing into the bracket, the block being locked in position after adjustment by means of the screw 24:.

The guide for raisin the vamp and d1- recting it between the e es of the vibrating and fixed knives is indicated at 26-. The shank of the guide is secured to a bracket 27 so as to be adjustable vertically thereon y means of a screw 28, and the block 27 is secured to the bracket 16 so as to be capable of a horizontal adjustment. thereon by means In its retractmg movement the vibrating of a screw At its lower end the guide extends inv'z rdly and is provided with a seat which receives the front edge of the blade of the fixed knife as indicated in Figs. 2 and T. The guide extends in front of the blade of the fixed knife and its upper surface forms a continuation of the upper surface of the fixed blade.- The guide bears against the sole of the shoe presented to the machine and forms a sole guide in addition to forming a means for raising the vamp from the sole and directing it between the cutting edges of the knives. At its inner end the guide projects beyond the cutting edge of the fixed blade into a position to bear against the lip of the insole, and thus also acts as a lip guide.

The vibrating bending device for engaging the upper and bending it inwardly between the cutting edges of the knives is indicated at 30, and consists of a plate projecting from a block 31 adjustably secured by means of a screw 32 to the lower end of a lever'33.- The lever 33 is pivoted upon the frame of the machine and is connected at its upper end by means of a link 3i to the reciprocating slide 2 so that at each'reciprocation of the slide and the vibrating trimming knife mounted thereon an oscillating movement is imparted to the bending device. The bending device moves across the plane in which the vibrating knife cuts and between the cutting edges of the knives when the vibrating knife is retracted. A portion of the plate extends in advance of the knives as is clearly shown in Fig. l, so that the proper action of the plate on the vamp as it is fed to the knives is insured. To provide means for adjusting the. extent. of movement imparted to the bending device the link 34 is adjustably connected to the upper end of the lever 33 by means of a bolt 35 passing through a curved slot 36 in the lever.

The shoe is presented to the machine as indicated in Fig. i"). the surface of the sole being in a plane inclined to the plane in which the vibrating trimming knife cuts and the lip of the sole extending in a di rcction substantially parallel with this plane. .vs the shoe is led it guided by the engement oi' the guide it with the sole and th the inner surface of the lip of the sole. ic guide it; also raises the lining'and vam from the sole in case thcv are pre ed down against the sole. and the bending device bonds the vamp and lining inwardly n case th arc aslandiir' awa v from the sole and out oi the path oi movem nt of the vibrating trinnning knife. The vibrating trim ming knife is actiritcd at a high rate of speed and the shoe is fed along practicallv cimtinuously, the shape and arrangement of the trimming knives and of the guide it; permitting the shoe to be manipulated to &

present all portions of the edges of the vamp and lining to the action of the trimnnng knife.

The nature and scope of the present invention having been indicated, and a machine embodying the various features of the present invention in their preferred form having been specifically described, What claimed is:

1. A vamptrimming machine, having, in combination. a trimming knife for trimming the edge of the vamp, and a cooperating knife arranged to extend inside of the vamp of a lasted shoe having its blade angularlv disposed with relation to the blade of the trimming l-znife and provided with a cutting edge at its end, said trinnningknife cutting .across the plane of the cooperating knife blade.

vamp trimming machine, having, in combination, a trimming knife for trimming the edge of the vamp, a cooperating fixed knife arranged to extend inside of the vamp of a lasted shoe, and a guide extending in front of the fixed knife arranged to raise the vamp and direct it between the cutting retracted and acting to bend the edge of the vamp inwardly between said cutting edges.

4*. A vamp trimming machine, having, in ctanbination. a trimming knife for trimming the edge of the vamp, and a viliu'ating bend ing device movable across; the plane in which the trimming knii'e cuts for bending the edge of the vamp inwardly toward the medial line of the shoe into a position to be acted upon by the trimming knife.

A vamp trinuniug machine, having, in combination, a vibrating trimming knife for trimming the edge oi the vamp, a cooperating fixed knife having its blade angularlv disposed with relation to the blade of the trimming knife and arranged to extend inside of the vamp ot' a lasted shoe, and a guide directly engaging the vibrating knife to maintain its cutting edge in alinemcnt with the. cutting edge oi the tixed knife when separated therefrom. t

(1. it vamp trimming machine, having, in combination. a vibrating trimming knife for trimming the edge of the vamp, a cooperating lixcd knii' arranged t extend inside of the vamp of a lasted shoe having its blade angnlariv disposed with relation to the blade of the trimming knife and provided with a.

cutting edge at its end, said trimming knife cutting across knife blade.

7. A vamp trimming machine, having, in combination, a trimming knife for trimming the edge of the amp, and a coijperating fixed knife having its blade anguiariy disposed with relation to the blade of the trimming knife and arranged to extend inside of the vamp of a lasted shoe with its cutting edge at an angle to the sole of the shoe.

8. A vamp trimming machine, having, in combination, a trimming knife for trimming the edge of the vamp, a cooperating knife arranged to extend inside of the vamp of a lasted shoe, and means acting on the vamp in front of said cotiperating knife to raise the vamp and direct it between the cut ting edges of the knives.

- 9. A vamp trimming machine, having, in combination, a trimming knife for trim-. ming the edge of the vamp, a cooperating knife arranged to extend inside of the vamp of a lasted shoe, and a guide extending in ront of said cooperating knife arranged to bear on the sole inside of the lip and raise the vamp and direct it between the cutting edges of the knives. v

10. A vamp trimming machine, having, in combination, a. vibrating trimming knife for trimming the edge of the vamp, a knife cooperating therewith, and a'vibrating bendthe plane of the cooperating I ing sea-aria edges of the knives when the trimmingknife is retracted and acting to bend the edge of the amp between the cutting edges of the knives.

11. A vamp trimming machine, having, in combination, vamp trimming mechanism including a vibrating vamp trimming knife, a

vibrating vamp bending device for bending.

the vamp into a position to be acted upon by the knife and means foractuating the vibrating knife andbending device acting to advance the bending device toward the shoe when the knife is retracted.

12. A vamp trimming machine, having, in combination, vamp trimming mechanism including a vibrating vamp trimming knife, a vibrating vamp bending device to engage the vamp and bend it into position to be acted upon by the knife, carriers for the knife and bending device, means for vibrating the knife carrier and a link connecting the carriers for actuating the vamp bendirig device.

In testimony whereof I aiiix my signature, in presence of two Witnesses.

JOHN B. HADAWAY.

\Vitnesses .Q

' FRED 0. Field,

ALFRED H. HILDRETH.

device movable between the cutting 

